Maria was born on January 1, 2000. Her mother was born on January 1, 1975 and her father was born on January 1, 1970. In what year was the sum of their
ages 100?

If a || b and b | y, then ? a) x || y. b) x | a. c) a | y. d) a || y.

Can someone, me with this.i really need with this

You have 37 coins that are nickels, dimes, and pennies. the total value of the coins is $1.55. there are twice as many pennies as dimes. find the number of each type of coin in the bank.